Resilient member



May 31,1927. 1630,93"

W. W. DOTY RESILIENT MEMBER Filed Nov. 5. 1922 33 i Vi'lla am Wpig Patented May 31, 1927.

UNITED ST WILLIAM W. DOTY, OF STATEN. ISLAND, NEW YORK, A SSIGNOR F ONE-HALF TO SID- NEY ROSENBAUM, OF NEW YORK, N. Y.

RESILIENT MEMBER.

Application filed November The invention relates to a novel type of resilient member which is adapted for various purposes; and may be employed, for example, in the construction of a bumper for self-propelledvehicles, as well as an elastic support for vehicle bodies, cushion seats, or as a bed spring, etc.

The invention consists essentially of a member which may comprise a resilient, flattened spring-steel wire or rod, or a band of resilient metal; and in accordance with the invention, the same has an end formed as a spiral which is attached at its center to a suitable supporting member.

The nature of the invention, however, will best be understood when described in connection with the accompanying drawings, in which Fig. 1 illustrates the improved resilient member embodied in a bumper for self-propelled vehicles.

Fig. 2 illustrates a form of resilient member suitable for use as aback rest.

Fig. 3 illustrates an underneath view of an arrangement 'suitable for supporting a cushion seat or mattress of a bed; and Fig. 4 is a vertical section therethru, taken on the .line 44, Fig. 3.

Fig. 5 is a sectional view illustrating a modification in the seat support.

Fig. 6 is an end view illustrating the spring member applied as a resilient support for a vehicle.

Referring to the drawings, and more particularly to Fig. 1 thereof, 10 indicates suitable supporting members, such as horns projecting from the chassis of a self-propelled vehicle (not shown), and provided with'an upturned outer end for supporting and carrying the bumper. a one-piece member of flattened spring-steel wire or rod, or of a band of resilient metal. The intermediate impact receiving portion 11 is shown bent backwardl at the ends which are then turned inwar ly and follow for a short distance along and back of said impact portion 11, but are spaced therefrom. The remaining portions of the resilient metal, at each end, are then wound into a spiral 12, as indicated, and lie substantially in the plane-of said impact receiving portion with the inner ends suitably secured to the upturned portion of the respective horns or like members 10. It will The latter consists of- 3, 1922. Serial No. 598,721.

be observed that the spiral winding at one end is in the reverse direction from that at the other end. A force acting on the portion 11, between these two points of support asbetween 3 and y, would thus tend to cause both end spiral portions to close the springs at the top and open the same at the bottom to accommodate the impact or pressure; whereas a force applied to an end portion of the impact receivin portion 11 outwardly of either y or y would tend to cause the particular spiral at that end to close or wind up and the spiral at the other end to open or unwind; It is preferred, in some instances, to reinforce the portion 11 with one or more leaves 13.

This construction of resilient member is also particularly suitable as a spring backrest frame, Fig. 2; and in that embodiment, the outer surface of the frame forming member 15 is bent to the desired shape, for example, into an arc of a circle. stood, of course, that the same may be variously formed.

The particular spiral arrangement of the spring-member may also serve to provide a very satisfactory elastic support as a box spring or v as a means for supporting a cushion or mattress or'the like, Figs. 3

It is under- I and 4; and in such arrangement, a plurality of separated spring members are utilized and arranged at right angles, as indicated, and preferably interwoven, the extensions from the spiral portions thereof providing a surface 21 to receive and support the weight of the cushion 20 and may have end upturned portions 22 to afford a side support or retainer therefor, the said extensions, also, being curved or formed to accommodate the particular type of cushion or mattress employed. A rod or pipe frame 23 supports the various spirals 24 at their respective centers, as shown.

As shown in Fig. 5, by having the convolution of the spirals 26 in the reverse direction from those indicated in the previously described embodiments, a rounded edge or surface 27 may be provided; and this ill port for a vehicle body 31, the ends of the spirals 32 of the sup-port member being secured directly or indirectly to an axle 33 of the vehicle. The said supporting surface of the spring is secured to the body 31.- of the vehicle Which, When provided thus both at the front and rear with the transverse support, is insured against undue shocks and side Wobbling as blows will be quickly non-- tralized by the spring and equilibrium restored.

The novel resilient member herein de scribed provides thus for a non-rigid, flexible and resilient support which, in the case ot a bumper, will serve to cushion an object struck and to reduce the impact on the vehicle. It Will serve, furthermore, as a resilient support member for vehicle bodies and for cushions, mattresses, and the like; and may be formed of any desired contour. Moreover, as a one-piece article, it is extremely simple and inexpensive to construct; and the spiral loop may consist of one or more turns as will be found necessary for the desired degree of resiliency, the mass carried being always supported from the center of the spiral portion.

1. A. resilient member comprising a strip of resilient metal with each end bent into a spiral and the intermediate port on adapted to receive a load, and supporting means therefor secured to the spiral ends substantially at the centers thereof.

2. A resilient member consisting of a piece of resilient material having a substantially I straight portion, spirals formed of said piece of material adjacent to the ends of said straight portion and connected thereto, and supporting means for the spirals secured to the spirals at substantially the centers of the spirals. I

3. A resilient member consisting of a piece of resilient material having'a substantially straight portion, spirals having a plurality of convolutions formed of said piece of material adjacent to the ends of said straight portion and connected thereto, and supporting means for the spirals secured to the spirals atsubstantiall'y the'centers of the spirals.

4; A resilient member consisting of a piece of resilient material having a substantially straight portion, spirals formed of said piece of material adjacent to the ends of said straight portion and connected thereto in spaced relation to each other in a plane parallel to the plane of said straight ortion, and supporting means for the spirals assesses secured to the spirals at substantially the centers of the spirals.

5; A resilient member consisting of a piece of resilient material having a substantially straight portion, spirals formed of said piece of material adjacent to the ends of said straight portion and connected thereto in spaced relation to each other in a plane parin spaced relation to each other in a plane parallel'to the plane of said straight portion, the portions of said piece connecting the spirals to said straight portion being of substantially U-shape.

7. resilient member consisting of a piece of resilient material having a substantially straight portion spirals formed of said piece of material ad acent to the ends of said straight ortion and connected thereto in spaced re ation to each other in a plane parallel to the plane of said straight portion, the portions-of said piece connecting the spirals to said straight portion being of substantially Ushape, and supporting means for the spirals secured to the spirals at substantially the centers of the spirals.

8. A resilient member consisting of a flat strip of resilient metal having a substantially straight portion, spirals formed of said strip adjacent to the ends of said straight portion and connected thereto in spaced relation to each other in a plane parallel to the plane of said stright portion, the portions of said strip connecting the spirals to said straight portion'being of substantially U-shape, and supporting means for the spiral secured to the spirals at substantially the centers of the spirals, the ends of said straight portion being locatedoutwardly from the points of intersection with said straight portion of straight lines from said supporting means to said straight portion.

Signed at New York, in the county of New York and State of New York, this 31st day of October, A. D. 1922.

WILLIAM W. no'rY.

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